Lock.



C. SGHOENFBLD.

LOCK.

APPLICATION FILED AUG. l1, l913. 1, 1 21 ,047, Patented Dec. 15, 1914.

Z SHEETS-SHEET l. l-E- i- E@ j 25 (ID 2.4L Z

2 |l|1`|`25 1 l1 il* -Q C. SCHOBNPELD.

LOCK.

APPLICATION FILED 11116.11, 1913.

Patented Dec. 15, 1914.

2 SHEETS-SHEET 2.

THE MORRIS PETERS Ca. PNOTOLITNOA, WAIHING TON. 0. t;

CHARLES SCHOENFELD, OF CANTON, OHIO.

LOCK.

Specication of Letters Patent.

PatentedDec. 15, 191-1.

Application filed August 11, 1913. Serial No. 784,028.

T all whom it may concern Be it known that I, CHARLES Soi-ronn- Fnno, a citizen oit the United States, residing at Canton, in the county of Stark and State of Ohio, have invented certain new and useful improvements in Locks, of which the l'ollowing is a specification.

illy invention relates to improvements in locks, more especially to that class oit locks used upon doors olf houses, but is equally applicable to doors of jail or prison cells or the like and has for its object, to provide a lock of the class mentioned in which the bolt is held in positive locked position by the automatic action of devices so arranged that the bolt will be positively held in position to lock the door to any object to which the door proper may be attached.

n further object is to provide means for actuating the devices designed to hold the bolt in an outward position and to release the bolt.

These objects, together with other objects readily apparent to those skilled in the art l attain by the construction illustrated in the accompanying drawings.

ln the accompanying drawings-ll`igure 1 is a plan view of my improved lock showing the parts thereof in normal position when the bolt is tree to be withdrawn or .moved inward. Fig. 2 is a view showing the different parts of the lock in normal position when the bolt is moved outward and locked against endwise movement, except by Fig. 3 is a view of the lock casing showing the detachable part-s removed. Fig.

- il is a view showing the lock bolt, its spring and the key actuated lever and the locking do@ in normal position when the bolt is moved outward and locked. Fig. 5 is a perspective view of the sliding bolt locking plate and its bevel ended strike bar. Fig. G is a top edge view of the sliding bolt locking plate and its bevel ended strike bar. Fig. "l is a iront edge view of the lock.

Similar numerals of reference indicate corresponding parts in all the figures of the drawings.

The casing 1 is of the usual form and'is provided with the usual connecting plate 2 and cover, all of which parts are common and do not enter into the present invention except that a casing and its usual parts must necessarily be present. The cover or top plate 2 is of the usual construction, and is not illustrated but is fitted to the casing 1 `detailed description is necessary.

in the usual manner. The locking bolt 3 is provided with the enlarged head Ll, said head having the beveled outer face 5 adapted to project into the keeper G when in locked position. The bolt 3 is located within the casing and is held by the biiurcated post 7 and the mortise or opening 8fL formed in the connecting plate 2. The bolt 3 is provided with the flange 8, which liange is lor the purpose hereinafter described, and

` also for the purpose of providing a shoulder or abutment for one end of the spring 9, the opposite end of ,said spring being located against thc collar 10, which collar is located against the tace ol the bi'l'urcated post 7 as best illustrated in Figs. 1 and 2. The spring 9 is for the purpose of normally holding the bolt 3, together with its difterent parts in an extended or outward position.

To the casing 1 is attached in the usual manner the tumbler casing 11 which tumbler casing is provided with the usual tumblers, which are common and form no specific part of the present invention, but are of the usual key tumbler construction such as j used in locks upon the market and hence no For the purpose of preventing any accidental rotation or movement of the tumbler 11, said casing is provided with the notches 12 into one of which notches is normally seated the bar 13, which bar is held against end movement by means oi' the screw 14, which screw is locatedv in a suitable screw threaded aperture formed in the head 15, so that by rotating the screw 1-1- in one direction will force the bar 13 into one ol the notches 12 and by rotating the screw in the opposite direction will withdraw the bar 13 from one of the notches 19., after which the tumbler casing can be removed. It will be understood that the screw 14 has no longitudinal movement during the time it is rotated, the same being properly j ournaled in the post 16. The just above described parts are also common and form no specific part of the present invention, except that they or their equivalents must necessarily be present.

To the casing 1 is pivotally attached the bell or l. shaped lever 17 the arm 18 of said lever beingso located that it can be actuated by the key actuated bar or arm 19, which is moved by the key and when it is desired to move the bolt 3 so as to release it from its keeper, or in other Words to unlock the door bolt 3 in its outward position independentv the arm 19 is turned and' brought into contact with the arm 18, the arm of the bell shaped lever 17 being pressed downward which in turn rocks the bell or L shapedv lever 17 upon its pivotal point, thereby moving the upward or vvertical arm 20 inward, which action moves the locking bolt 3 inward by reason of the short ange or rib 21 striking against the outer t face of the VflangeS.

For the purpose of normally holding the arm 18 in an upward position. and the arm 20 in an outward position, the leaf spring 22 is provided, which spring is connected to the casing 1 and its free end pressing against the under side of the arm 18, by which arrangement the arm 20 will follow the movement of the bolt 3 when it is forced outward or into position to lock the door. y

lt is quite well understood. that locks in which the bolts can be forced backward may be opened by bringing pressure upon the beveled face of the locking bolt normally located in the keeper, the usual method' being to insert a flat piece of metal between the lock proper and the door casing and gradually forcing the locking bolt out of its keeper, thereby unlocking the door without the use of a key. In order to prevent the picking of a lock it is necessary toprovide means for locking the locking bolt against yend movement or in other words locking the locking bolt in an outward position and in such a manner that the extended or beveled end lcan not be forced backward except by the use of a key or other instrument intended to actuate the locking bolt. Y

For the purpose of locking the locking of the key, I provide a sliding plate 23, which sliding plate is provided with the beveled head or end 24, which beveled end` strikes the door jamb when -the* door is closed, thereby movingthe locking plate 23 inward, which locking plate is connected to' the lock casing by means of the pin or screw v 25, which is located through the elongated slot 26 formed in the sliding plate 23.

To the casing 1 is pivotally attached the latch or locking barv 27, which vlatch bar'is held up by reason of the vpin 28 carried by the sliding plate 23 coming in contact with the shoulder 29;` but' when the pin 28. is moved from under the shoulder 29, the latch bar 27 is free to drop into the position shown.

in Fig. 2 and when in that position the outer or free end of the `catch bar 27 drops back of the shoulder 30, thereby, preventing any end movement of the locking bolt 3 except when actuated by the key designed to actuate the lock proper.

It will be understood that when the bevel i ended head 24 is pressed inward, the latch 27 will be released and permitted to fall, and

the locking bolt 3 held in the keeper by wise movement.

reason of the latch plate 27 and in such a manner that itA cannot be moved by any pressure brought against the beveled face of the locking lbolt 3. i v

When it is desired to unlock the door or in other words movethe looking bolt 3 endwise the arm 19 is moved by the keyand the bell crank or'lever 17 rocked thereby moving the vertical arm 20 inward at which time the top or upper end of the arm 2O strikes the beveled faced lug 31 formed upon the latchfbar 27 thereby lifting the latch bar 27 and releasing the same from the shoulder 30, at

`which time the locking bolt3 is free. to be moved-endwise by the arm 20, the rib 21 coming in Contact with the flange 8, it will be yunderstood that before the locking bolt 3 can be moved endwise the latch bar 27 must.

seating the opposite end of the spring in a notch or a recess 34 formed in the latch bar 27. For the purpose of moving the sliding plate 23 in an outward. direction so as to extend the beveled end 24 beyond the plate 2, the spring 34 is provided, one end of said spring being attached to the face plate 2 or its equivalent and the opposite end being attached to the pin 28 or its equivalent.

It Win b3 ndelS/OOd that the extreme topi,` 1'" of the arm 20 yof the bell shaped lever 17 should be beveled sothat as the arm moves inward the beveled flange 31 will'ride upward uponthe beveled end 35.

For the purpose of preventing the lock bolt 3y from being locked in an extended position during the time the door is beingv closed or at any other time when it is not intendedto lock the lock bolt, against inward .movement thet beveled faced head 4 is so arranged withf reference to the beveledlhead or end 24 located-upon .the sliding plate 23 that when the jamb ofv the door or other object comes in contact with the beveled face 5 of `the head 4, the bolt 3 will be moved inward in advance of. the inward movement of the beveled head 24 so that the latch plate cannot fall into position to lock the lock bolt 3 until after said lockk bolt has been extended into its keeper, but after said lock bolt has been extended into its keeper the latchv plate is free to fall and lock the bolt against end-4 of the beveled heads 4 and 24 are clearly shown in Fig. 7, andas shown the striking face of the beveled head 4 is extended be- The relative arrangement 'ice i yond or to one side of the head 24: a suflicient distance to move the lock bolt 3 before the latch plate 23 is actuated or in other words a portion of the beveled faced head 4 is located out of alinement with the beveled head 24.

Having fully described my invention what I claim as new and desire to secure by Letters Patent, is

l. In a lo'ck of the class described, a casing, a lock bolt carried within said casing, said lock bolt provided with a beveled faced head and a liange spaced from said head, an L--shaped lever pivotally connected to the casing, one of the arms of said lever being adapted to be actuated by the lock mechanism and the other arm of said lever located between the beveled faced head and the spaced flange, said arm provided with an extended rib and a beveled upper end, a spring controlled latch bar pivotally at tached to the casing and said latch bar adapted for contact with the arm located between the head and Vflange of the lock bolt, said arm provided with a shoulder, a sliding plate provided with a beveled end, and a pin adapted for engagement with the shoulder on said latch arm.

2. In a. lock or" the class described, a casing, a lock bolt carried within said casing, said lock bolt provided with a beveled laced head, and a flange spaced from said head, an L-shaped lever pivotally connected to the casing, one of the arms Of said lever adapted to be actuated by the lock mechanism and the other arm of said lever located between the beveled faced head and the spaced flange,

said arm provided with a beveled upper end, a spring controlled latch arm pivotally attached to the casing and said latch arm adapted for contact with the arm located between the head and flange of the lock bolt, said latch arm provided with a shoulder, and a sliding plate provided with a beveled end, and a pin adapted for engagement with the shoulder on said latch arm.

In a loclr of the class described, a casing, a loel bolt carried within said casing, said lock bolt provided with a beveled faced head, and a flange spaced from said head, an f L-shaped lever pivotally connected to the casing, one of the arms of said lever adapted to be actuated by the lock mechanism and the other arm of said lever located between the beveled faced head and the spaced flange,

said arm provided with abeveled upper end, a spring controlled latch arm pivotally attached to the casing and said latch arm adapted for contact with the arm located between the head and ange of the lock bolt,

Copies o1 this patent may be obtained for five cents each, by addressing the Commissioner of Patents.

Washington, D. C. 

